Chapter 4 discusses the evolution of the urban space of Jeddah in the late nineteenth and early twentieth century on the basis of maps, photographs, and documents. It shows the impact of the Ottoman modernisation efforts regarding the urban fabric. Thus, the economic lifelines of the city, such as the ports and markets, were regularly cleaned and expanded. New buildings also reflected the increase of the state functions of administration and health. The latter issue was given particular attention in the light of concerns over epidemics, most notably cholera. Another major and related concern was the provision of sufficient and clean drinking water. Urban growth is also seen in the evolution and growth of suburbs which were closely linked to the city.